Internal sliding steam thermal insulation pipe

Abstract

The utility model discloses an internal sliding steam thermal insulation pipe, and relates to the technical field of steam thermal insulation pipes, the internal sliding steam thermal insulation pipe comprises an outer protective pipe, the surface of the outer protective pipe is in sliding connection with a sliding block I, the sliding block I is internally provided with a sliding groove, the inner part of the outer protective pipe is in sliding connection with a fixed rod, and the fixed rod is internally provided with a sliding groove. The surfaces of the fixing rods are slidably connected with the inner walls of the sliding grooves, threaded rods are rotatably connected to the surfaces of the two first sliding blocks, and a threaded sleeve is arranged between the two threaded rods. According to the inner sliding steam heat preservation pipe, by rotating the threaded sleeve, the fixing rods are inserted into the clamping grooves to fix the steel pipe; the steel pipe and the outer protective pipe are prevented from being fixed in a welding mode in the later period, the situation that the surfaces of the steel pipe and the outer protective pipe are damaged by the high temperature of welding is avoided, the situation of rusting in the later period is reduced, meanwhile, the device is conveniently disassembled in the later period to take out the steel pipe, and workers can conveniently install and use the device.

Description

Technical Field

[0001] The utility model relates to the technical field of steam insulation pipes, in particular to an inner sliding steam insulation pipe. Background Art

[0002] Insulated pipe is the abbreviation of insulated pipe. Insulated pipe is used for the transportation of liquid, gas and other media. It is used in thermal insulation projects of pipelines in petroleum, chemical industry, aerospace, military, central heating, central air conditioning, municipal and other industries. At present, steel-jacketed steel steam insulated pipe is widely used in heating projects.

[0003] After the existing internal sliding steam insulation pipe is produced, it is necessary to fill the gap between the steel pipe and the outer protective pipe so that the outer protective pipe and the steel pipe are connected together to form a whole. In order to prevent the internally installed steel pipe from sliding inside the outer protective pipe, resulting in the dislocation of the steel pipe, it is often necessary to add welded steel plates between the steel pipe and the outer protective pipe at both ends of the insulation pipe to fix the position of the steel pipe and ensure that the steel pipe is in the center of the outer protective pipe, thereby preventing the displacement of the steel pipe from affecting the subsequent processing of the insulation pipe. However, most of the existing welding uses welding rods to weld and fix the reinforced steel plates, and the welding rods are used for welding the steel plates. During the process, high temperature and heat will be released, and since the high-temperature parts of the steel pipe after welding are more likely to deform than other parts, the high temperature generated by welding will destroy the anti-corrosion coating on the surface of the steel pipe, causing the anti-rust coating at the welding part to fall off and no longer cover the surface of the steel pipe, exposing the surface of the steel pipe, so that the steel pipe will be in direct contact with the outside world, resulting in the internal steel pipe becoming more susceptible to rust during the use of the insulation pipe, which in turn causes damage to the insulation pipe, and the insulation pipe becomes no longer sealed, thereby reducing the service life of the insulation pipe and increasing the use cost of the insulation pipe. For this reason, an inner sliding steam insulation pipe is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide an inner sliding steam insulation pipe which can solve the problems of the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an inner sliding steam insulation pipe, comprising an outer protective pipe, the surface of the outer protective pipe is slidably connected with a sliding block 1, a sliding groove is provided inside the sliding block 1, the inner part of the outer protective pipe is slidably connected with a fixed rod, and the surface of the fixed rod is slidably connected to the inner wall of the sliding groove, the surfaces of the two sliding blocks 1 are rotatably connected with threaded rods, a threaded sleeve is provided between the two threaded rods, and the inner walls of the threaded sleeves are respectively threadedly connected to the surfaces of the two threaded rods, a steel pipe is provided inside the outer protective pipe, and a groove is provided on the surface of the steel pipe.

[0006] Preferably, the inner wall of the slide groove is inclined.

[0007] Preferably, a fixed block is fixedly connected to the surface of the outer protective tube, and a moving rod is slidably connected to the surface of the fixed block. The end of the moving rod away from the fixed block is fixedly connected to sliding block one, and sliding block two is slidably connected inside the fixed block. The surface of sliding block two is fixedly connected to the sliding rod, and the sliding rod penetrates into the interior of the outer protective tube. The surfaces of the sliding rod are respectively slidably connected to the fixed block and the interior of the outer protective tube, and the end of the sliding rod located inside the outer protective tube is fixedly connected to a support block.

[0008] Preferably, the side of the sliding block 2 that contacts the moving rod is arranged to be inclined.

[0009] Preferably, the support block is arranged in an arc shape.

[0010] Preferably, a coating is fixedly connected to the surface of the steel pipe, and the coating includes a heat insulation layer, a thermal insulation layer, and a high-temperature resistant layer. The surface of the steel pipe is fixedly connected to the high-temperature resistant layer, the surface of the high-temperature resistant layer is fixedly connected to the thermal insulation layer, and the surface of the thermal insulation layer is fixedly connected to the heat insulation layer.

[0011] Preferably, a ball is slidably connected to the surface of the fixing rod, and the surface of the ball is slidably connected to the inner wall of the sliding groove.

[0012] Preferably, a rubber pad is fixedly connected to the surface of the support block.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] , the inner sliding steam insulation pipe, by rotating the threaded sleeve, allows the fixing rod to be inserted into the inside of the slot to fix the steel pipe, avoiding the need to fix the steel pipe and the outer protective pipe by welding at a later time, avoiding the high temperature of welding from damaging the surfaces of the steel pipe and the outer protective pipe, reducing the possibility of rust at a later time, and at the same time facilitating the disassembly of the device at a later time to take out the steel pipe, making it easier for the staff to install and use it. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the surface structure of the outer protective tube of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the threaded sleeve of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the outer protective tube of the utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the fixed block of the utility model;

[0021] Figure 6 It is a schematic diagram of the structure of the coating of the utility model.

[0022] Figure numerals: 1. outer protective tube; 2. sliding block one; 3. steel pipe; 4. threaded rod; 5. threaded sleeve; 6. fixed block; 7. movable rod; 8. slide groove; 9. fixed rod; 10. coating; 101. thermal insulation layer; 102. heat preservation layer; 103. high temperature resistant layer; 11. slot; 12. sliding rod; 13. support block; 14. sliding block two. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] See also Figure 1-6 The utility model provides a technical solution: an inner sliding steam insulation pipe, comprising an outer protective tube 1, the two ends of the outer protective tube 1 have the same structure, the surface of the outer protective tube 1 is slidably connected with a sliding block 2, the interior of the sliding block 2 is provided with a slide groove 8, and the inner wall of the slide groove 8 is inclined, the interior of the outer protective tube 1 is slidably connected with a fixing rod 9, and the surface of the fixing rod 9 is slidably connected to the inner wall of the slide groove 8, the surface of the fixing rod 9 is slidably connected with a ball, the surface of the ball is slidably connected to the inner wall of the slide groove 8, the surfaces of the two sliding blocks 2 are both rotatably connected with threaded rods 4, a threaded sleeve 5 is provided between the two threaded rods 4, and the inner walls of the threaded sleeve 5 are respectively threadedly connected to the surfaces of the two threaded rods 4, a steel pipe 3 is provided inside the outer protective tube 1, and the surface of the steel pipe 3 is provided with a card groove 11.

[0025] When the threaded sleeve 5 is rotated, the two threaded rods 4 move toward the inside of the threaded sleeve 5 through the setting of the threaded connection between the threaded sleeve 5 and the two threaded rods 4 respectively, and the two threaded rods 4 drive the two sliding blocks 2 to move relatively. Moreover, since the slide groove 8 is set in an inclined shape, when the sliding block 2 moves, the inner wall of the slide groove 8 squeezes the fixing rod 9, so that the fixing rod 9 is inserted into the inside of the card groove 11. By rotating the threaded sleeve 5, the fixing rod 9 is inserted into the inside of the card groove 11 to fix the steel pipe 3, thereby avoiding the steel pipe 3 and the outer protective tube 1 being fixed by welding in the later stage, avoiding the high temperature of welding from damaging the surfaces of the steel pipe 3 and the outer protective tube 1, reducing the rust in the later stage, and at the same time facilitating the disassembly of the device in the later stage to take out the steel pipe 3, so as to facilitate the installation and use by the staff.

[0026] The surface of the outer protective tube 1 is fixedly connected to a fixed block 6, and the surface of the fixed block 6 is slidably connected to a moving rod 7, and the end of the moving rod 7 away from the fixed block 6 is fixedly connected to the sliding block 1 2, and the interior of the fixed block 6 is slidably connected to a sliding block 2, and the side of the sliding block 14 that contacts the moving rod 7 is set in an inclined state, and the surface of the sliding block 14 is fixedly connected to a sliding rod 12, and the sliding rod 12 penetrates into the interior of the outer protective tube 1, and the surfaces of the sliding rod 12 are respectively slidably connected to the fixed block 6 and the interior of the outer protective tube 1, and the end of the sliding rod 12 located inside the outer protective tube 1 is fixedly connected to a support block 13, and the support block 13 is set in an arc shape, and the surface of the support block 13 is fixedly connected to a rubber pad.

[0027] When the sliding block 1 2 moves, the sliding block 1 2 drives the moving rod 7 to move, and because the side of the sliding block 2 14 that contacts the moving rod 7 is set to an inclined shape, the moving rod 7 moves to squeeze the surface of the sliding block 2 14, and then the sliding block 2 14 moves to push the sliding rod 12, and then the sliding rod 12 drives the supporting block 13 to move, and the supporting block 13 moves to support the steel pipe 3. The steel pipe 3 is in the center position inside the outer protective tube 1, which is convenient for the staff to fill the gap between the steel pipe 3 and the outer protective tube 1 later, and it is convenient for the staff to use

[0028] Since the sliding block 1 2 drives the moving rod 7 to move, it will directly push the sliding block 2 14 to lift the support block 13, and the fixing rod 9 is located inside the sliding groove 8 and needs to move a certain distance before it can be inserted into the inside of the card slot 11, so that the support block 13 will first lift the steel pipe 3 and then the fixing rod 9 will be inserted into the inside of the card slot 11, avoiding affecting the fixation of the steel pipe 3.

[0029] The surface of the steel pipe 3 is fixedly connected with a coating 10, and the coating 10 includes a heat insulation layer 101, a thermal insulation layer 102, and a high temperature resistant layer 103. The surface of the steel pipe 3 is fixedly connected to the high temperature resistant layer 103. The material of the high temperature resistant layer 103 is zinc-rich paint. The zinc-rich primer has good high temperature resistance and good adhesion, so that the zinc-rich paint coated on the surface of the steel pipe 3 is not easy to fall off, and can play an anti-rust effect on the device.

[0030] The surface of the high temperature resistant layer 103 is fixedly connected to the heat-insulating layer 102 . The heat-insulating layer 102 is made of calcium silicate, which insulates the device and dissipates surface heat.

[0031] The surface of the heat preservation layer 102 is fixedly connected to the heat insulation layer 101. The heat insulation layer 101 is made of polyurethane material, which performs heat insulation treatment on the device and protects the objects covered inside it.

[0032] Working principle: The threaded sleeve 5 is rotated to make the two sliding blocks 2 move relative to each other, and because the slide groove 8 is set in an inclined shape, the inner wall of the slide groove 8 squeezes the fixing rod 9, so that the fixing rod 9 is inserted into the inside of the card groove 11 to fix the steel pipe 3.

[0033] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An inner sliding steam insulation pipe, comprising an outer protective pipe (1), characterized in that: The surface of the outer protective tube (1) is slidably connected to a sliding block (2), a sliding groove (8) is provided inside the sliding block (2), a fixing rod (9) is slidably connected inside the outer protective tube (1), and the surface of the fixing rod (9) is slidably connected to the inner wall of the sliding groove (8), the surfaces of the two sliding blocks (2) are both rotatably connected to threaded rods (4), a threaded sleeve (5) is provided between the two threaded rods (4), and the inner wall of the threaded sleeve (5) is respectively threadedly connected to the surfaces of the two threaded rods (4), and a steel pipe (3) is provided inside the outer protective tube (1), and a clamping groove (11) is provided on the surface of the steel pipe (3).

2. The inner sliding steam insulation pipe according to claim 1, characterized in that: The inner wall of the slide groove (8) is arranged to be inclined.

3. The inner sliding steam insulation pipe according to claim 1, characterized in that: The surface of the outer protective tube (1) is fixedly connected to a fixed block (6), the surface of the fixed block (6) is slidably connected to a moving rod (7), one end of the moving rod (7) away from the fixed block (6) is fixedly connected to a sliding block 1 (2), the interior of the fixed block (6) is slidably connected to a sliding block 2 (14), the surface of the sliding block 2 (14) is fixedly connected to a sliding rod (12), the sliding rod (12) penetrates into the interior of the outer protective tube (1), the surface of the sliding rod (12) is slidably connected to the interior of the fixed block (6) and the outer protective tube (1), respectively, and one end of the sliding rod (12) located inside the outer protective tube (1) is fixedly connected to a support block (13).

4. The inner sliding steam insulation pipe according to claim 3, characterized in that: The side of the sliding block 2 (14) that contacts the moving rod (7) is arranged to be inclined.

5. The inner sliding steam insulation pipe according to claim 3, characterized in that: The support block (13) is arranged in an arc shape.

6. The inner sliding steam insulation pipe according to claim 1, characterized in that: The surface of the steel pipe (3) is fixedly connected with a coating (10), the coating (10) comprising a heat insulating layer (101), a heat insulating layer (102), and a high temperature resistant layer (103), the surface of the steel pipe (3) is fixedly connected to the high temperature resistant layer (103), the surface of the high temperature resistant layer (103) is fixedly connected to the heat insulating layer (102), and the surface of the heat insulating layer (102) is fixedly connected to the heat insulating layer (101).

7. The inner sliding steam insulation pipe according to claim 1, characterized in that: A ball is slidably connected to the surface of the fixing rod (9), and the surface of the ball is slidably connected to the inner wall of the sliding groove (8).

8. The inner sliding steam insulation pipe according to claim 3, characterized in that: A rubber pad is fixedly connected to the surface of the support block (13).

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